Mineral Ore Deposits: Meaning, Origin and Types | Geology
Bauxite, the well-known ore of aluminium, is a typical residual accumulation in most cases. Ores of iron like limonite, goethite and hematite and of manganese like psilomelane and pyrolusite are other examples of residual deposits. Similarly, deposit of silicate nickel ore of residual origin is also known.
Types of Ore Deposits - Mineral Processing & Metallurgy
A List to some Major Types of Ore Deposits and a link Book Download. Komatiite-associated nickel deposits. Layered mafic-ultramafic intrusion deposits. Skarn deposits. Fractionated granitoid-associated deposits. Porphyry-associated deposits. Iron oxide copper gold deposits. Syn-deformational hydrothermal and replacement deposits.
Ore - Wikipedia
An ore deposit is one occurrence of a particular ore type. Most ore deposits are named according to their location (for example, the Witwatersrand, South Africa), or after a discoverer (e.g. the Kambalda nickel shoots are named after drillers), or after some whimsy, a historical figure, a prominent person, something from mythology (phoenix, kraken, serepentleopard, etc.) or the code name of the resource company …
Types of Ore Deposits | Sanuja Senanayake
Apr 15, 2013 · Stockwork texture, veins amd breccia are typical types of rocks. If the formation is caused due to hydrothermal alternation, then the ore is classified as an epigenetic formation. Examples: El Teniente, Chile. Volcanogenic Massive Sulphide (VMS) Deposits. Syngenetic Primary: Zinc, Copper, Gold, Silver, Lead
How Ore Deposits Are Formed?
Porphyry-type ore deposits rank among the world’s most important sources of copper, molybdenum and gold. They meet around three quarters of today’s global copper demand and are thus of extreme economic importance.
Ore deposit | geology | Britannica
Almost all ores are recovered from porphyry-disseminated deposits. These are either primary molybdenum deposits or complex copper-molybdenum deposits from which molybdenum is recovered as a coproduct or… Read More; nickel
Ore genesis - Wikipedia
Often ore deposits are classified after examples of their type, for instance Broken Hill type lead-zinc-silver deposits or Carlin–type gold deposits. Genesis of common ores [ edit ] As they require the conjunction of specific environmental conditions to form, particular mineral deposit types tend to occupy specific geodynamic niches, [5] therefore, this page has been organised by metal commodity .
Gold Deposit Classification: List of 10 Types of Gold Deposits
Gold/Auriferous Deposits can be classified into types for which here is a List of 10 Types of Gold Deposits: Auriferous porphyry dykes, sills, and stocks; Auriferous pegmatites; coarse-grained granitic deposits + albitite. Carbonatites and carbonatite-related …
Classification of Mineral Deposits
vein deposits mississippi valley type deposits massive volcanogenic deposits sedimentary massive sulphide deposits layered mafic intrusion type deposits placer deposits references Introduction In order to more readily study mineral deposits and explore for them more effectively, it is helpful to first subdivide them into categories.
Classification of ore deposits - SlideShare
Oct 22, 2017 · •Deposits formed in bodies of rocks are volcanic exhalations (sublimates, fumarolic deposits), igneous metamorphic deposits (contact metamorphic, contact metasomatic, hypothermal in carbonate rocks), hydrothermal deposits (hypothermal, mesothermal, epithermal, telethermal, xenothermal), metamorphic deposits stone weathering deposits.
Geology of Gold Mineralization & How Gold Deposits are Formed
Gold is relatively scarce in the earth, but it occurs in many different kinds of rocks and in many different geological environments. Though scarce, gold is concentrated by geologic processes to form commercial deposits of two principal types: lode (primary) deposits and placer (secondary) deposits.
Types of Copper Deposits in the World | An Investors ...
There are two distinct types of copper deposits: sulfide ore and oxide ore. Currently, the most common source of copper ore is the sulfide ore mineral chalcopyrite, which accounts for about 50 percent of copper production. Sulfide ores are processed via froth floatation to obtain copper concentrate.
Mineral deposit - Iron deposits | Britannica
There are two major types of deposit. The first, and by far the most important, is banded iron formations ( BIFs ), so called because they are finely layered alternations of cherty silica and an iron mineral, generally hematite, magnetite, or siderite.
Sedimentary Ore Deposits ~ Mining Geology
Clastic Sedimentary Ore Deposits Silica"Sand & Gravel" Sedimentary deposits are formed through the erosion, transportation, and redeposition of minerals that can survive the rigors of transportation.
Classification of Mineral Deposits | Geology for Investors
Jul 29, 2013 · Most mineral deposits are formed by more than one process, so attaching a single label to them is difficult. Hence, there is a tendency to talk about Stillwater Complex type or Carlin-type gold deposits, which rather defeats the purpose of finding a general from the specific. There are two main approaches to mineral deposit classification.
ORE DEPOSIT TYPES AND THEIR PRIMARY EXPRESSIONS …
Ore Group Some Deposit Types and Examples Typical Element Associations* Komatiite-associated nickel deposits Mt Keith, Kambalda, Widgiemooltha, Maggie Hays, Jubilee.
Ore Deposit - an overview | ScienceDirect Topics
Ore deposits that are associated with mafic to ultramafic igneous rocks can generally be divided into those where the metals of interest are hosted in oxide minerals and those where the metals of interest are held as sulfides or are strongly associated with sulfides (e.g., PGE alloys, arsenides, bismuthinides). The oxide ore bodies include stratiform, podiform, and breccia-related chromite, magnetite-rich layers …
Where to Find Gold Deposits: The Different Types of Gold ...
Lode Gold Deposits (Veins of Gold in Rock & Gold Ore) Veins of gold in rocks and gold ore under the ground (and sometimes above the ground) are called lode deposits.
Iron Ore Distribution in India | Types of Iron Ore | PMF IAS
Jan 24, 2016 · High grade ore deposits are those of Kemmangundi in Bababudan hills of Chikmagalur district and Sandur and Hospet in Bellary [Lot of Mining Mafia]. Most of …